TABLE 1.

Eligibility Criteria

Inclusion criteria

The study population had LBP

The study examined at least one of the three general preference based instrument (EQ5D, SF6D, HUI3)

The study reported an estimate of mean score for the preference based instrument/s examined and for a comparator (e.g., disease specific)

Exclusion criteria

The study focused on a condition other than LBP

The study examined LBP with comorbidities

Pharmacodynamic and pharmacokinetic studies

Presentation at conferences and poster presentation